Supply Facility Maintenance

Supply facility maintenance

For stable operation of the main piping of 4,790km and 397 supply stations for nationwide supply of natural gas, 9 piping branches, 12 offices and 14 branch offices are operated and run in 24-hour emergency-ready system.

Main tasks

2Inspection and maintenance of the central command room and local control rooms

3Disassembly, inspection and maintenance of main facilities

4Recovery when emergency

Piping and offices

[Unit: km, office]

Piping and offices

Category

Supply piping(km)

Supply office(the number of offices)

Rated voltage control

Blocking control

Block valve

Total

Total

4,790

141

141

115

397

Seoul

413

17

9

12

38

Incheon

267

11

4

3

18

Gyeonggi

533

20

9

17

46

Gangwon

662

13

27

28

68

Daejeon Chungcheong

464

11

16

7

34

Jeonbuk

462

12

15

4

31

Gwangju Jeonnam

575

16

21

10

47

Daegu Gyeongbuk

813

20

28

21

69

Busan Gyeongnam

601

21

12

13

46

Supply facilities

[Unit: unit]

Supply Facility

Category

Gas filter

Gas heater

Monostat

Measuring facility

Total

440

397

958

708

Seoul

51

49

135

97

Incheon

38

45

103

67

Gyeonggi

53

56

141

101

Gangwon

48

34

89

59

Daejeon Chungcheong

40

29

62

47

Jeonbuk

38

36

92

67

Gwangju Jeonnam

56

40

96

85

Daegu Gyeongbuk

64

49

112

87

Busan Gyeongnam

52

59

128

98

[Gas filter] Gas filtering facility to prevent damage on the facilities including monostat and flowmeter caused by foreign substances in the transported gas .

[Gas heater] Facility for heating the transported gas to prevent change of gas condition due to temperature drop when reducing pressure through monostat; and to prevent damage on other devices and piping at low temperature

[Monostat] Facility to reduce preset pressure of the transported high pressure gas